Improvement in curtain-fixtures



L. C. PRINDLE.

Improvement in-CurtainFixture-s. NO. 4,852 Patented May16,87l.

tni itia at caza.l

L. CORYDON PRINDLE, OF CHICAGO,- ILLINOIS.

LettersPatent No. 114,852, dated May 16,1871.

IMPROVEMENT IN CURTAIN-FIXTURES.

The Schedule refexred to in these Letters Patent and making part of the same.

To all whom. it may concern:

with a curtain and fixtures made according to myinvention;

.Figure 2 is a side elevation of the fixtures;

Figure 3 is a top or plan view of same', showing the way in which the cord crosses;

Figure 4 isa view of the corner pulleys and their method of attachment, the pulleys being in section;

Figure 5 is an end View of the cord-holder, enlarged; f

Figure 6 is a side view of same;

Figure 7. is a front view ofsame;

Figure 8 is a section on line :i: :t of iig. 7; and

Figure 9 is an enlarged View of the pivot to bear the cord-holder.

Like letters of referencermade use of in the several figures indicate like parts.

General Description.'

A 1s tue frame or casing of an ordinary window. B is the curtain, which is supported from the roller This roller is furnished at each endwith a pivot, c, bearing in a clutch or holder, I), which holder gripes 1yr holds a cord, E, by means of which the roller is raised or lowered bodily.

This roller is also furnished with the ordinary iigid-grooved pulley F, around which is looped the cord G, which is endless and passes over the pulley g at the top of the easing, and around the tightenerH placed near the bottom of the casing. This cord onerates to turn the roller and roll up the curtain.

The cord E is endless, and passes around the pulley J placed near the bottom of thecasing.

Both parts or plies then pass up around two pulleys, ij.'

The plies then cross one another, as seen at iig'. 3, after which they pass around the pulleys k l, and down the other side of the casing to the tightener K, over which the hight is looped.

The roller C is attached to the outside ply of the cord E, which, by reason of the cross at the top, becomes, at each side of the casing, the ascendingn or descending ply, as the case may be, on both sides alike.

The pulleys j Isl aremade with an aperture to receive a spindle, upon which they`revolve.

This spindle, marked m in the drawing, and seen clearly at fig. 4, is made somewhat smaller in diameter than the aperture in the pulleys, but is furnished with a head, n, at the outer extremity of just the same size as the aperture, so that the -pulley maybe slipped upon the spindle and will remain without riveting or otherwise fastening.

The pulleys J and g are made' in like manner, and

the pulley g is carried upon the samespindle as the pulleys l The bases or flanges M of the pulleys ij YIt l g, to which are attached the spindles, are made right angled, as seen at g. 3, so that these pulleysmay be attached to the window-casing either at that portion parallel to the plane of the window or at rightangles thereto.

This lange or base is provided with screw-holes .in the form of slots, as at o o, and by this construction the base and spindle may be cast all in one piece by dividing the pattern on thelihe y y of iig. 4. l

The pivots c, which project from the ends of the -roller C and bear in the holder D', are made`as shown at lig. 9, with collar p, hearing q, and rounded head fr; and the aperture s in the holder, figs. 7 and S, is made oblong, with its greatest diameter transversely tothe length of the holder. This aperture s is made with a beveled edge, also.

The pivot c may be placed in this aperture by tipping it up until the head catches past the beveled edge, when it may be brought straight, and the parts are engaged.

The holder D is furnished at each end with the projecting parts u u, which contain a slot, rv lv.

yBetween these projecting parts arise two bridges, N N, provided with V-shaped notches z z, in which rests the cord.

'The cord, in attaching the holder, is made to pass through the slots and over the bridges, so that any downward or upward strain upon the holder tends to drawthe cord more firmly -into the notches z z of the bridges, and to render the holder immovable uppu the cord.

Having thus fully described my invention,

That which I claim as new, aud desire to secure by Letters Patent, is-

l. The employment oi'. detachable or open pulleys in a curtain-xture, which admit of the endless cord readily attached to o r detached from the endless cord 5. The combination Vof the endless cord G, the

E after said cord'is in position over the pulleys, subvroller C, and the endless cord E, for holding the stantially as speciied and shown.

3. The combination of the holder D and pivot c, when 'the holder is made detachable therefrom, in the manner specified and shown.

4. The combinationxcf the endless cord E and de- Witnesses: taclmble adj ustable bolder D, substantially as and for JNO. W. MUNDAY, the purpose specified H. F. BRUNS.

roller at any point, while the cord GfA turns it, to raise or lower the curtain, as described and shown. L. OORYDON PRINDLE. 

